Goodwill (Tables)

6 Months Ended

Jun. 30, 2013

Goodwill

Schedule of changes in goodwill

Changes in goodwill for the six months ended June 30, 2013 are summarized as follows (in thousands):

	Liberty		Northeast		Southwest			Total
Gross goodwill as of December 31, 2012	$	74,256	$	62,445	$	34,178		$	170,879
Acquisition (1)	—		—		2,682			2,682
Gross goodwill as of June 30, 2013	74,256		62,445		36,860			173,561
Cumulative impairment (2)	—		—		(28,705		)	(28,705		)
Balance as of June 30, 2013	$	74,256	$	62,445	$	8,155		$	144,856

(1) Represents goodwill associated with the Buffalo Creek Acquisition (see Note 4).

(2) All impairments recorded in the fourth quarter of 2008.